His comments came a day after Issa (R-Calif.) called White House press secretary Jay Carney a “paid liar” in light of the controversy surrounding the IRS and a division in the agency that scrutinized conservative groups.

“Their paid liar, their spokesperson … he’s still making up things about what happened and calling this a local rogue,” Issa said on Sunday, speaking on CNN’s “State of the Union.”

“I mean, it’s a stunning thing,” Gibbs said of Issa’s charges. “It’s why five people in this town take Darrell Issa seriously and it’s the surest bet the Republicans are very much on the verge of overplaying their hand publicly and the American people will lose interest in their side of this. They want to see the IRS cleaned up, but they will understand quickly that Darrell Issa is doing nothing more than politicizing this event.”